1 /* 2 * Copyright (C) International Business Machines Corp., 2001 3 * Ported by Wayne Boyer 4 * Adapted by Dustin Kirkland (k1rkland (at) us.ibm.com) 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 14 * the GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 /* 22 * Testcase to check the basic functionality of setfsgid(2) system 23 * call fails when called by a non-root user. 24 */ 25 26 #include <stdio.h> 27 #include <unistd.h> 28 #include <sys/types.h> 29 #include <errno.h> 30 #include <pwd.h> 31 #include <grp.h> 32 33 #include "test.h" 34 #include "compat_16.h" 35 36 TCID_DEFINE(setfsgid03); 37 int TST_TOTAL = 1; 38 39 static char nobody_uid[] = "nobody"; 40 static struct passwd *ltpuser; 41 42 static void setup(void); 43 static void cleanup(void); 44 45 int main(int ac, char **av) 46 { 47 int lc; 48 49 gid_t gid; 50 51 tst_parse_opts(ac, av, NULL, NULL); 52 53 setup(); 54 55 for (lc = 0; TEST_LOOPING(lc); lc++) { 56 tst_count = 0; 57 58 gid = 1; 59 while (!getgrgid(gid)) 60 gid++; 61 62 GID16_CHECK(gid, setfsgid, cleanup); 63 64 TEST(SETFSGID(cleanup, gid)); 65 66 if (TEST_RETURN == -1) { 67 tst_resm(TFAIL | TTERRNO, 68 "setfsgid() failed unexpectedly"); 69 continue; 70 } 71 72 if (TEST_RETURN == gid) { 73 tst_resm(TFAIL, 74 "setfsgid() returned %ld, expected anything but %d", 75 TEST_RETURN, gid); 76 } else { 77 tst_resm(TPASS, "setfsgid() returned expected value : " 78 "%ld", TEST_RETURN); 79 } 80 } 81 82 cleanup(); 83 tst_exit(); 84 } 85 86 static void setup(void) 87 { 88 tst_require_root(); 89 90 ltpuser = getpwnam(nobody_uid); 91 if (ltpuser == NULL) 92 tst_brkm(TBROK, cleanup, "getpwnam failed for user id %s", 93 nobody_uid); 94 95 if (setuid(ltpuser->pw_uid) == -1) 96 tst_resm(TINFO | TERRNO, 97 "setuid failed to set the effective uid to %d", 98 ltpuser->pw_uid); 99 100 tst_sig(NOFORK, DEF_HANDLER, cleanup); 101 102 TEST_PAUSE; 103 } 104 105 static void cleanup(void) 106 { 107 } 108
